"Using PostgreSQL with n8n Workflow Automation" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Pre-trade token safety check for AI agents. Simulates a sell before you buy, then returns one low/medium/high/unknown verdict with the signals behind it: sellability, buy/sell tax, liquidity depth, pair age, same-ticker impersonation, owner powers from bytecode. Ethereum, BSC, Base, Solana. Fail-closed - a check that cannot run answers unknown, never low. Publishes its own measured error rate with the benchmark harness in the repo. Free, no signup, no API key, MIT.
Secure MCP Server for WordPress connects AI assistants and agents to WordPress with secure, controlled access. It lets AI interact with WordPress through MCP while helping organizations manage access, enforce policies, protect non-human identities (NHI), and require human approval for sensitive actions. Use it to securely connect tools such as ChatGPT, Claude, and Cursor with WordPress. Marketplace Link: https://wordpress.org/plugins/miniorange-secure-mcp-server/ Official website: https://plugins.miniorange.com/mcp-server-ai-policy-enforcement-wordpress ChatGpt Marketplace: https://chatgpt.com/plugins/plugin_asdk_app_6a312802286c8191bad0a7278a4e53ef Claude Marketplace: https://claude.ai/directory/miniorange-mcp-for-wordpress Cursor Marketplace: https://cursor.com/marketplace/miniorange
Send documents for legally valid e-signature in Brazil, track signers and status, and download signed files with Assinafy, a Brazilian e-signature platform with a free API plan (www.assinafy.com.br).
Website monitoring for any site, deepest on WordPress & WooCommerce: add sites, configure and run monitors, read health and performance, review results with undo, apply proposed fixes.
Parallel Solana token risk and transaction safety for AI agents. Paid MCP tools inspect tokens and unsigned transactions; the HTTP risk panel queries compatible advisors in parallel and returns an indicative consensus. x402-compatible clients pay USDC automatically, with no signup or API key.
AI personas with a lasting, encrypted memory per project, for Claude Code. Hosted in France.
Email security and AI discoverability scores for any domain, with the exact record or tag to fix.
Zero-auth cryptographic provenance and notarization engine anchoring AI outputs, audits, and agreements to TON Blockchain with strict zero-storage.
Pre-execution policy gate for consequential agent actions with durable trust receipts.
Smart contract security screening for Base. Check any contract or token for risk before interacting with it: Solidity source verification, upgradeable proxies and admin or mint powers, holder concentration, dangerous selectors, and B20 issuer powers. It surfaces the usual rug pull and scam indicators. The free tool needs no wallet and no API key; the paid Flash Audit (3.49 USDC over x402) returns a report with an anchored SHA-256. Payment is the only gate.
Built for human creators. Register a timestamp on Polygon proving you made something, the moment you did. Your file is never uploaded, watermarked, or altered: only its cryptographic fingerprint ever reaches spArxx.io, zero-knowledge by design. A human still provisions the account behind the connection. This is deliberate, since this registration only means something with a human behind it.
Persistent knowledge graph for AI-augmented teams. Store decisions, findings, and standing rules across agent sessions with semantic search and typed connections. Includes cross-session memory, audit trail, workspace isolation, and secret detection. Built for teams running agents that need to remember. Free until launch with team tier as default, anon trial available.
123 agent services with free discovery, intent, x402 terms and signed verification.
Supervised API-write gateway for AI agents with policy, human approval and execution receipts.
Paid AI utility APIs for semantic web comparison, migration safety, code verification, document extraction, security analysis, monitoring, accessibility auditing, and citation research. Accessible through MCP with x402 payments on Base mainnet.
SEO, AEO, GEO, Local SEO & CRO Growth Auditor + Safe Code Fixer with multi-page sitemap crawling, HTTP security headers inspection (HSTS, CSP), and universal WebMCP support.
Per-transaction crypto trade validator for AI agents. Returns deterministic PROCEED / CAUTION / BLOCK verdicts using WaveGuard anomaly detection, history checks, and rug-pull risk analysis.
Smart contract security screening for Base. Check any contract or token for risk before interacting with it: Solidity source verification, upgradeable proxies and admin or mint powers, holder concentration, dangerous selectors, and B20 issuer powers. It surfaces the usual rug pull and scam indicators. The free tool needs no wallet and no API key; the paid Flash Audit (3.49 USDC over x402) returns a report with an anchored SHA-256. Payment is the only gate.
MCP-native Trust Infrastructure for AI Agents. Persistent encrypted memory with Trust Quotient.
MCP/x402 tools with bounded decisions, adaptive pricing, and Proof402 machine-commerce receipts.
